MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A researcher is testing the effect preschool has on the development of
young children - are children who spend more time away from their
mothers more or less likely to show developmental problems in
kindergarten? Using a standardized scale, the average rating of
behavioral problems in kindergarten children is 36.6 with a standard
deviation of 8. A random sample of 15 kindergarten children who had
spent at least 20 hours per week in child care during the previous year
produced the scores shown in the data. Test at o.01 level of significance
that children who spend more time away from their mothers are more
likely to show developmental problems in kindergarten.
38 39 42 43 48 44
38 36
42
37 36 47 48 38
41
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Transcribed Image Text:A researcher is testing the effect preschool has on the development of young children - are children who spend more time away from their mothers more or less likely to show developmental problems in kindergarten? Using a standardized scale, the average rating of behavioral problems in kindergarten children is 36.6 with a standard deviation of 8. A random sample of 15 kindergarten children who had spent at least 20 hours per week in child care during the previous year produced the scores shown in the data. Test at o.01 level of significance that children who spend more time away from their mothers are more likely to show developmental problems in kindergarten. 38 39 42 43 48 44 38 36 42 37 36 47 48 38 41
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